When you run smbd -V on your Snow Leopard installation, you'll see it's running SAMBA version 3.0.28a-apple. While I'm not sure how much difference the "-apple" makes, version 3.0.28a is old. Very old. In other words, it's riddled with bugs. Apple hasn't updated SAMBA in 3 years, and for Lion, they're dumping it altogether for something homegrown. The reason? SAMBA is now GPLv3.

True. I also think history has shown us that sometimes companies need to be protected from themselves. The economy as a whole works best when there is more competition. The corporate modus operandi is to grow profits as large as possible, which leads to monopolistic behaviour, which would kill itself in the long run. Its like when an organ of the body becomes cancerous, its cells just want to grow and multiply but end up killing the whole body instead of improving the functioning of the body.

We need controls on corporate greed, for the sake of the good of all the corporations ( as well as the consumers, obviously). GPL V3 is such a control. The increased adoption of it, would be a good thing for many companies, including those that are afraid of it.